Plastic pipe extrusion line is composed of an extruder, pipe molds, vacuum and cooling system, haul-off, pipe cutter and pipe stacker.
QINGCHENYU is a leader of plastic pipe extrusion machine manufacturer in China, our products include PVC/HDPE/PP-R pipe extrusion lines.
The process of plastic pipe extrusion line starts by feeding plastic material (pellets, granules, flakes or powders) from a hopper into the barrel of the extruder. The material is gradually melted by the mechanical energy generated by extruder screws and by heaters arranged along the barrel. The molten polymer is then forced into a die, which shapes the polymer into a shape that hardens during cooling.
The plastic pipe production line adopts a specially designed multi-stage vacuum tank that controls the degree of vacuum to ensure the dimensional stability and roundness of HDPE and PPR pipes. The extruder and tractor adopt imported brand-name speed governors, with features such as good stability, High precision and high reliability.
The operation of the plastic pipe production line is programmed by PLC, and it is equipped with a good interface. All process parameters can be set and displayed through the touch screen. The color line extruder can be assembled to produce products that meet the requirements of national standards.
The Plastic pipe production line uses high-efficiency extruders which is dedicated to produce HDPE/PVC/PPR pipes. The screw adopts a barrier and mixing head structure. The barrel adopts a new slotted barrel, with better plasticization, high output and stable extrusion.
The pipe production line has a spiral die head. The die has the characteristics of low melt temperature, good mixing performance, low cavity pressure and stable production.
The plastic pipe production line adopts a proprietary vacuum and cooling system, water film lubrication and water ring cooling to meet the requirements of HDPE/PVC/ PPR materials, and to ensure that stably produce the pipes at a high speed.
Optimizing the performance of a plastic pipe production line is essential to increase productivity, reduce waste, and improve product quality. Firstly, regularly maintain and calibrate the production line machinery and equipment such as extruders, cutting devices and inspection systems. Secondly, ensure that the raw materials are of good quality and meet the required specifications. Implementing a real-time quality control system is also important in detecting defects in the pipes early in the production process. Thirdly, optimize the production workflow by minimizing downtime between different operations. Finally, Continuous monitoring and data analysis can identify areas of improvement and help optimize the performance of the plastic pipe production line. By following these steps, it's possible to achieve an efficient and reliable production process that results in high-quality plastic pipes.
Recycling and sustainability are important aspects of plastic pipe production line. This industry generates a significant amount of plastic waste, but companies can reduce their environmental impact by using recycled plastic and implementing recycling systems. Using recycled plastic in plastic pipe production saves energy, reduces landfill waste, and conserves natural resources. Additionally, production lines can be optimized to reduce energy consumption and minimize waste by implementing lean manufacturing principles, such as using environmentally-friendly lubricants and updating machinery to be more energy-efficient. By focusing on sustainability throughout the plastic pipe production line, companies can reduce their environmental impact while still maintaining a profitable and productive operation.
What Factors Affect the Quality of Plastic Pipes in the Production Process?
1. Temperature: Temperature affects the quality of plastic extrusion molding, and it is necessary to control it below the thermal decomposition temperature to avoid residual stress and surface dullness.
2. Pressure: Pressure changes with time will produce periodic fluctuations, affecting the quality of plastic parts. Changes in screw speed and unstable heating and cooling systems can cause pressure fluctuations. The screw speed should be reasonably controlled to ensure the temperature control accuracy of heating and cooling equipment.
3. Extrusion speed: Extrusion speed is affected by a number of factors, including mechanical structure, rotational speed and plastic characteristics. Adjusting screw speed is the main control method.
4. Traction speed: The extrusion process is equipped with a traction device, and the plastic parts are stretched and oriented under the traction. The tensile strength in traction direction increases with the degree of tensile orientation, but the length shrinkage becomes larger after cooling. The traction speed should be equivalent to the extrusion speed, and the ratio of traction speed to extrusion speed is called the traction ratio, and its value must be greater than 1
What Are the Key Components of a Plastic Pipe Production Line?
1. Extruder: Extruder is one of the important core components of plastic pipe extrusion production line. The thermoplastic material is forced through a screen changer or nozzle while rotating a screw creates friction and heats the material.
2. Vacuum tank: The pipeline has a size, but the vacuum tank is used to prevent the collapse of the pipeline. Keep an ideal shape while using a sprayer to cool the mold.
3. Belt tractor: Materials are transported from the vacuum tank to the sawing machine through the belt tractor.
4. Cutting saw: Cut the finished product to the required length with a cutting saw.
5. Coiler: wheel spinning arm that supports rapid continuous extrusion.
6. Corrugated sheet: through the mold and nozzle, continue to adhere to the extruder.
What Are The Raw Materials for Plastic Pipe?
PVC is economical, weather resistant, corrosion resistant, non-toxic, suitable for conveying acid, alkali, water, oil and other chemical substances.
HDPE dense structure, high strength, suitable for wear-resistant pipes, but also resistant to acid and alkali and other chemicals, because of its high mechanical strength, often used in mining and mineral mining industry wear-resistant pipes and corrosive storage tanks and control pipes and tubes.
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